AVP motor report & questions (pictures)

airkooledchris · Samba Member Joined: January 25, 2005 Posts: 2710

http://www.eucasafari.vendioweb.com/AVP/

The local shop halted during the install of my new rebuilt AVP 2.0 motor when they saw something funny on the heads.

I don't know how quite to explain, so please take a look at the photo's.

basically part of the welded head seems to be chipping away, and they aren't sure if this is a failure or if the little bits should be bent and broken off prior to install, so they dont come out down the road and end up inside the motor.

I took a few other shots as well, showing things that cause me a bit of concern.

any advise, suggestions or other misc tomfoolery is of course welcomed.

chris

81 aircooled

actually, since you can post images here in the forum, i may as well link to them here as well:

Image may have been reduced in size. Click image to view fullscreen.

TheBeast · Posted: Wed Jul 05, 2006 6:14 pm Post subject:

You should read Richards info here about other suspects as well:

http://www.ratwell.com/technical/Longblock.html

The flash is most likely from installing the new guides, but you'd think they would check their own work.

Rolling Eyes

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Bottomend · Posted: Wed Jul 05, 2006 6:16 pm Post subject:

It shouldn't be a problem to simply clean away the offense but, I'd take heed of what Jake has been saying about the quality of these heads before continuing.

Randy in Maine · Posted: Wed Jul 05, 2006 6:16 pm Post subject:

I would call the place you bought it from and communicate your issue. I would have the guy from the shop with me.

airkooledchris · Samba Member Joined: January 25, 2005 Posts: 2710

zabo · Posted: Wed Jul 05, 2006 7:27 pm Post subject:

ive had a few problems with some rebuilt avp heads I got through bus depot.
I'm not impressed with thier rebuilds. The number 1 intake stud pulled out, it had been helocoiled and failed after less than a mile. and the outer threads had been sandblasted off.
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visibleink · Posted: Thu Jul 06, 2006 5:45 am Post subject:

I would hate to worry about chunks breaking off. Why not just have AVP switch out that head?
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germansupplyscott · Posted: Thu Jul 06, 2006 6:08 am Post subject:

it is no surpise that these things happen with economy rebuilds. you simply can't rebuild a type 4 engine and charge 1400.00 retail and expect anything different. anyone can do the math and see that the numbers don't add up. you cannot even buy the parts for a for a good rebuild for 1400.00 wholesale, let alone pay for any machine work and assembly. you have to cut corners to make it work. use chinese P&C, not rebuild the connecting rods, clean parts & paint them but not actually rebuild them, save assembly time by not checking deck height or valve geometry, and the real killer, find a small issue like a broken fin or valve guide boss but just keep going instead of back-tracking to fix it.

as for this engine itself - the broken fin will not be a problem, the engine can take it. the timesert in the plug hole is fine, at least they used a timesert and not a helcoil. the badly installed valve guide is just an indication of the the overall standard of workmanship in the shop that did the rebuild.

it isn't getting any easier or cheaper to get good parts for your old bus.
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EdW · Posted: Thu Jul 06, 2006 6:19 am Post subject:

Just hope that parts of the case aren't breaking apart inside the engine. This piece here:

was found broken off inside my crankcase, seen here:

The piece that busted off was an obvious repair that was done pretty shoddily and did not last. Caused me to have to do a complete rebuild on my AVP longblock which was also found to be quite worn (with only 14,000 miles on the clock).

However, I'm extremely pleased with the new rebuild, my bus now has power. Wink

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whip618 · Posted: Thu Jul 06, 2006 7:57 am Post subject:

EdW, that is the perfect " Type IV syndrome" example of what happens when someone over torques the oil strainer plate. These photos should be made a sticky so newbies to type IV's will understand the importance of the proper use of a torque wrench.

Phil
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EdW · Posted: Thu Jul 06, 2006 8:08 am Post subject:

wayradmike · Posted: Thu Jul 06, 2006 9:15 am Post subject:

here's a pretty example of what happens when you don't use oversized valve guides in an apparently cheap-arsed head rebuild. dern yer hide PO.

note the piece of guide imbedded into the head.

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Bleyseng · Posted: Thu Jul 06, 2006 11:58 am Post subject:

cool domed pistons...90mm? or the rare 93's?
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Bajatacoma · Posted: Thu Jul 06, 2006 12:36 pm Post subject:

What really sucks about it is that you can build a performance Chevy 350 with a lot higher quality parts for less than a Type IV. It just doesn't make sense sometimes... Confused

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tristessa · Posted: Thu Jul 06, 2006 12:57 pm Post subject:

Bleyseng · Posted: Fri Jul 07, 2006 6:54 am Post subject:

Try buying Porsche parts Sad

Porsche Classic parts does supply parts for the older models but the prices, ouch. Atleast the quality is OEM instead the Chinese crap that is out there.
_________________
70 Ghia Black convert-9/69 build date-stock w/133k 1600 SP-barn find now with a rebuilt tranny and engine
77 Westy 2.0L w/Ljet, Camper Special engine-95hp and with LSD!(sold)
76 Porsche 914 2.1L L20c, 120hp Djet (sold)
87 Syncro Westy Titan Red 2.1L 2 knob 100k miles

airkooledchris · Samba Member Joined: January 25, 2005 Posts: 2710

On that note, what would be the least expensive motor to build, and can you adapt it to fit a baywindow bus compartment?

I mean, if you can get a brand spankin new american V6 for around $2k, and the parts are as cheap as it sounds like they are, maybe that would be a good direction to head...

for those of us looking for some affordable powerplans.

the subaru motors can't be cheap, and those Ford guys on the east coast dont come cheap either.

Bajatacoma · Posted: Fri Sep 22, 2006 2:47 pm Post subject:

Slap a Toyota engine in it (i.e Roadcow http://www.blabberon.com/picts.html]) and drive it till it dies. Laughing

I'm kidding of course.
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'78 Westy

Who is the happier man, he who has braved the storm of life and lived or he who has stayed securely on shore and merely existed?
Hunter S Thompson

MarkTime · Posted: Sat Sep 23, 2006 8:35 am Post subject:

MarkTime · Posted: Sat Sep 23, 2006 8:38 am Post subject:


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